Clarion, PA Weather & Growing Conditions
Today
73°F
Partly Sunny
Partly sunny, with a high near 73. East wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Partly Sunny | 6 mph E | 2% |
| Tonight | 60°F | Showers And Thunderstorms | 7 mph SE | 85% |
| Sunday | 73°F | Showers And Thunderstorms | 8 mph SW | 94% |
| Sunday Night | 50°F | Mostly Cloudy | 8 mph NE | 10% |
| Monday | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 9 mph NE | 15% |
| Monday Night | 48°F | Chance Rain Showers | 7 to 12 mph E | 52% |
| Tuesday | 60°F | Chance Rain Showers | 12 mph E | 54% |
| Tuesday Night | 47°F | Chance Rain Showers | 14 mph E | 52% |
| Wednesday | 58°F | Chance Rain Showers | 10 to 14 mph E | 52% |
| Wednesday Night | 47°F | Showers And Thunderstorms Likely | 12 mph E | 55% |
| Thursday | 63°F | Rain Showers Likely | 7 to 10 mph E | 55% |
| Thursday Night | 47°F | Chance Showers And Thunderstorms | 7 mph E | 26% |
| Friday | 67°F | Partly Sunny then Slight Chance Rain Showers | 7 mph NE | 17% |
| Friday Night | 47°F | Slight Chance Rain Showers then Partly Cloudy | 6 mph NE | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Clarion, PA
Last spring frost
May 9
First fall frost
Oct 11
Growing season
154 days
Hardiness zone
6a
Explore more for Clarion, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, Clarion 3 Sw, Pa (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.